19
"
 To send an email through the cli app 'mail',
 this is what you have to do:
 ---------------------------------------------
 mail destination@email.com
 Subject: Hello World
 Email Body.
 .
 <ctl+d>
 --------------------------------------------
 To end the mail it is needed to put a dot in
 a clean line, and then press Control-D, to
 exit.
 To send an attachment:
---------------------------------------------
 mail -A /opt/backup.sql -s Backup File 
 user@example.com < /dev/null
---------------------------------------------
"